From owner-freebsd-chat Wed Apr 14 14:22:48 1999 Delivered-To: freebsd-chat@freebsd.org Received: from picnic.mat.net (picnic.mat.net [206.246.122.133]) by hub.freebsd.org (Postfix) with ESMTP id A23DE14CAC for ; Wed, 14 Apr 1999 14:22:44 -0700 (PDT) (envelope-from chuckr@picnic.mat.net) Received: from localhost (chuckr@localhost) by picnic.mat.net (8.9.3/8.8.5) with ESMTP id RAA57622; Wed, 14 Apr 1999 17:18:15 -0400 (EDT) Date: Wed, 14 Apr 1999 17:18:15 -0400 (EDT) From: Chuck Robey To: Anthony Kimball Cc: chat@FreeBSD.ORG Subject: Re: swap-related problems In-Reply-To: <14101.711.573218.994126@avalon.east> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Wed, 14 Apr 1999, Anthony Kimball wrote: > Quoth Chuck Robey on Wed, 14 April: > : ... just so the one guy to > : complain *at all* > > Someone is always the first person to recognize a defect. Until > others do, they stand alone. > > : ...can not lose sleep over something that has causes no > : problems at all with any ANSI code in a properly sized system. > > "properly sized system"? Smirk. Let's redirect this to chat. I mean to say by that, if the problem was recognized on a given system it would happen on that system if memory overcommit *wasn't* the policy. The difference is that far less programs would be able to run. Nearly all programs that use lots of malloc, do it sparsely. Stopping memory overcommit would cause a system to begin returning correct data to malloc, at the cost of a small fraction of the number of processes being able to successfully run. One way of looking at this is to focus directly (and only) on malloc, but that is looking at things with blinders on, and asking for fixes that would cause egregious harm to nearly all users. > ----------------------------+----------------------------------------------- Chuck Robey | Interests include any kind of voice or data chuckr@picnic.mat.net | communications topic, C programming, and Unix. 213 Lakeside Drive Apt T-1 | Greenbelt, MD 20770 | I run picnic (FreeBSD-current) (301) 220-2114 | and jaunt (Solaris7). ----------------------------+----------------------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message